How To Fix M8031 - Deliv. note does not refer to PO item with GR-based inv. verification

M8031 - Overview

• Message type: E = Error

• Message class: M8 - Invoice Verification/Valuation

• Message number: 031

• Message text: Deliv. note does not refer to PO item with GR-based inv. verification

What causes this issue?

The system cannot find a purchase order for the delivery note. This may
be due to one of the following reasons:
The purchasing department has not defined GR-based invoice verification
for this purchase order.
The delivery note number was not entered (or was entered incorrectly) at
goods receipt.
You have entered the wrong delivery note number.

How to fix this error?

Check the delivery note number and correct it if necessary. If your
input was correct, you cannot enter the invoice via the delivery note
number. In this case, proceed as follows:
If the invoice contains a PO number, enter it as a selection criterion.
If the invoice does not contain a PO number, position the cursor on the
field <LS>Purchase order</> and press F4. You can display all purchase
orders for this supplier. By referring to other data contained in the
invoice (such as quantity and price), you can find and selelct the
relevant purchase order from this list.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message M8031 - Deliv. note does not refer to PO item with GR-based inv. verification ?

  The SAP error message M8031, which states "Delivery note does not refer to PO item with GR-based invoice verification," typically occurs in the context of goods receipt (GR) and invoice verification processes in SAP. This error indicates that the delivery note you are trying to process is not linked to a purchase order (PO) item that is set up for GR-based invoice verification.
  
  Cause:
  
  PO Configuration: The purchase order item may not be configured for GR-based invoice verification. This means that the PO item is not set to require a goods receipt before an invoice can be processed.
  Delivery Note Issues: The delivery note may not be correctly linked to the relevant PO item, or it may refer to a different PO item that does not have GR-based invoice verification enabled.
  Document Type: The document type of the delivery note may not support GR-based invoice verification.
  Incorrect Item Category: The item category of the PO